Strap for Navitimer 1 B01 Chronograph 43 Red Gold / Black / Brown Croco

The lug width of the Breitling Navitimer RB012121.BG76.739P is 22 mm. This measurement should be taken with a digital calliper placed internally between the two lugs, flush against the springbar housing edges. It is the critical dimension for ensuring correct compatibility with any aftermarket strap.

For a 43 mm Red Gold case, a padded alligator Mississippiensis strap in cognac or tobacco — saddle-stitched with matching thread — is the most coherent choice, complementing the warm tones of the gold without competing with the busy dial layout. As an everyday alternative, a hand-patinated Tuscan vegetable-tanned calf leather strap develops an appealing character over time. For sport use, a low-relief vulcanised rubber strap in anthracite preserves the Navitimer's instrument aesthetic.

Strap replacement is carried out using a thin-blade or forked springbar tool, inserted into the lug hole to compress the springbar and release it from the case housing. It is advisable to work on a soft surface to protect the Red Gold case from scratching. No case-opening or watchmaker's tools are required, but care should be taken to avoid deforming the lugs during the operation.

Yes. Any strap with a 22 mm lug width and standard springbar is compatible with the Breitling Navitimer RB012121.BG76.739P. Milano Straps offers a curated selection of handcrafted straps in alligator, Tuscan calf leather, shell cordovan and rubber, all available in the 22 mm size with tapers to 20 mm or 18 mm depending on the chosen clasp.

Longevity depends on leather type, care and frequency of wear. A Tuscan vegetable-tanned calf strap, maintained with periodic applications of neutral leather cream, will typically last 2 to 4 years under regular use. A quality alligator strap, thanks to the density of the scales and high-grade tanning, can exceed 5 years. Shell cordovan, owing to the compactness of the equine fibre, is among the most durable options. Prolonged exposure to perspiration, water and direct sunlight accelerates deterioration across all leather types.